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US FDA · Class I, Class II & Class III · IVDs

FDA medical device classification: find your device class, product code and pathway

FDA medical device classification decides how your device reaches the US market. We identify your product code, regulation number and device class, check exemptions and special controls, and tell you exactly which FDA pathway applies — 510(k), De Novo, PMA or registration only.

3Risk-based device classes
~1,700Generic device types classified
60Days FDA goal for a 513(g) reply
The basics

How FDA medical device classification works

The US FDA places every medical device into one of three classes based on the risk it poses to the patient and user. Class I is the lowest risk, Class II is moderate risk and Class III is the highest risk.

The class is driven by the device's intended use and indications for use, plus factors such as where it is used in the body, how long it is in contact with the patient, and whether it is active, powered or implantable.

Why it matters

Your FDA device class decides your pathway

Classification regulations are set out in 21 CFR Parts 862–892, where each generic device type has a regulation number, a three-letter product code and a review panel.

The class sets the regulatory controls you must meet and your premarket route: registration and listing only, a 510(k), a De Novo request or a full PMA. Getting it wrong can mean a refused submission and months of delay.

Who needs an FDA device classification check?

Anyone placing a medical device or IVD on the US market should confirm its class before planning testing, design controls or a submission.

01
US manufacturersLaunching a new device or a modified version of an existing one.
02
Foreign manufacturersExporting devices to the US and planning registration, listing and a US Agent.
03
Software & SaMD developersChecking whether software functions are regulated devices and in which class.
04
IVD manufacturersClassifying reagents, analyzers and test kits under 21 CFR Parts 862–866.
How it works

How to find your FDA medical device classification, step by step

  1. 1

    Define intended use

    Step 1

    Write a clear intended use and indications for use statement. It drives every classification decision that follows.

  2. 2

    Search the FDA classification database

    Step 2

    Search the FDA Product Classification database by device name, keyword or product code to find matching generic device types.

  3. 3

    Identify regulation, product code and class

    Step 3

    Confirm the 21 CFR regulation number, three-letter product code, review panel and device class that fit your device.

  4. 4

    Check exemptions and limitations

    Step 4

    Many Class I and some Class II devices are 510(k)-exempt, but only within the limitations set out in the regulation.

  5. 5

    Review special controls and standards

    Step 5

    Identify special controls, FDA guidance documents and recognized consensus standards that apply to your device type.

  6. 6

    Resolve uncertainty with a 513(g)

    If needed

    If no regulation clearly fits, submit a 513(g) Request for Information to get FDA's view on class and requirements.

  7. 7

    Choose the regulatory pathway

    Outcome

    Proceed to registration and listing, a 510(k), a De Novo request or a PMA, with a plan for testing and timelines.

The three classes

FDA Class I, Class II and Class III explained

Each FDA medical device classification comes with its own level of control. The higher the risk, the more evidence FDA expects before the device can be marketed.

Class I: low riskSubject to general controls such as establishment registration, device listing, labeling that is not misleading, and quality system requirements. Most Class I devices are exempt from 510(k).
Class II: moderate riskSubject to general and special controls, such as performance standards, specific labeling and postmarket surveillance. Most need a 510(k) clearance unless exempt.
Class III: high riskDevices that support or sustain life, are implanted, or present a potential unreasonable risk. Most require Premarket Approval (PMA), usually backed by clinical data.
FDA medical device classification flowchart showing Class I, II and III controls and 510(k) or PMA pathways
FDA medical device classification flowchart: from device class to controls, 510(k) or PMA, and registration and listing.

For FDA's own overview, see Classify Your Medical Device.

FDA Class I, II and III medical devices compared

Each class carries its own controls and premarket requirements. Use this as a quick reference; the exact rules come from your device's classification regulation.

Class IClass IIClass III
Risk levelLowestModerateHighest
Potential harmMinimal potential for harmHigher risk than Class I devicesSupports or sustains life, is implanted, or presents a potential unreasonable risk of illness or injury
Regulatory controlsGeneral controlsGeneral + special controlsGeneral controls + premarket approval
Typical submissionMostly 510(k)-exempt; some need a 510(k)510(k) (some exempt); De Novo if no predicatePMA (a few preamendment types via 510(k))
Clinical dataRarely requiredSometimes requiredUsually required
ExamplesElastic bandages, examination gloves, hand-held surgical instrumentsPowered wheelchairs, infusion pumps, surgical drapesImplantable pacemakers, heart valves, breast implants
Our classification service

Our FDA medical device classification services

Classification assessmentDevice class, regulation number, product code and review panel confirmed in writing.
Exemption analysisCheck 510(k) and GMP exemptions and their limitations for your exact device.
Predicate searchIdentify cleared predicate devices to support a 510(k) pathway.
513(g) requestPrepare and submit a 513(g) Request for Information when classification is unclear.
De Novo strategyPathway and evidence plan for novel low-to-moderate risk devices with no predicate.
Pathway & testing planSpecial controls, recognized standards and testing mapped to your submission.

FDA medical device classification FAQs

How do I find the FDA medical device classification of my device?

Search FDA's Product Classification database using your device name or a similar device. The matching entry shows the regulation number, product code, device class, review panel and whether the device is 510(k)-exempt.

What is an FDA product code?

A three-letter code FDA assigns to each generic device type. It links your device to its classification regulation and is used for registration, listing and premarket submissions.

Do Class I devices need a 510(k)?

Most Class I devices are exempt from 510(k), but some are not, and exemptions only apply within the limitations in the regulation. Exempt devices still need establishment registration, device listing and general controls.

What if my device doesn't fit any classification regulation?

A new device type with no predicate is automatically Class III. If it is low-to-moderate risk, a De Novo request can classify it into Class I or II. A 513(g) request can confirm FDA's view first.

What is a 513(g) Request for Information?

A formal request asking FDA how it would classify your device and which requirements apply. A user fee applies, and FDA aims to respond within 60 days.

Can a device's classification change?

Yes. FDA can reclassify a device type, and changes to your intended use or technology can move your device into a different classification or pathway.

Not sure of your FDA device class?

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